Translate small french story

Bonjour, je m'appelle Arthur. J'ai 13 ans et j'habite a Marseille,
en France. J'habite avec mes parents et ma soeur dans une
grande maison qui n'est pas loin de la mer Méditerranée.
Notre maison a quatre chambres qui se trouvent au premier
étage. Ma seur et moi, nous sommes souvent dans le salon où
nous jouons aux jeux vidéo. Papa travaille dans son bureau au
rez-de-chaussée, mais après le travail, il aime jouer aux jeux
avec nous. Ma maman est toujours dans sa cuisine, car elle
aime faire les gâteaux. Derrière notre maison, il y a un joli
I jardin où nous mangeons et nous nous relaxons avec des amis.

Hello, my name is Arthur. I'm 13 years old and I live in Marseille, in France. I live with my parents and my sister in a big house that is not far from the Mediterranean sea. Our house has four rooms that are found on the first floor. My sister and I are often in the living room/lounge where we play video games. Dad works in his office on the ground floor, but after his work, he likes to play games with us. My mother is always in her kitchen because she loves making cakes. Behind our house, there is a small garden where we eat an relax with friends.

Explanation:

Apart from vocab which is know-it-or-you-don't, here are some clarifications:

1. In French, age is an expression with avoir (to have), so you say "I have 13 years" rather than "I am 13 years (old)".

2. "Qui", though it means "who", is also used as "which" or "that" such as when talking about the house (a large house [that] is not far from...)

3. se trouver and se relaxer are both refexive verbs and require a reflexive pronoun: when talking about the rooms, it is "se", and when talking about us, it is "nous".